DE3441967C1 - Fuel feed device - Google Patents
Fuel feed deviceInfo
- Publication number
- DE3441967C1 DE3441967C1 DE3441967A DE3441967A DE3441967C1 DE 3441967 C1 DE3441967 C1 DE 3441967C1 DE 3441967 A DE3441967 A DE 3441967A DE 3441967 A DE3441967 A DE 3441967A DE 3441967 C1 DE3441967 C1 DE 3441967C1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- throttle valve
- line
- valve
- fuel supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M3/00—Idling devices for carburettors
- F02M3/08—Other details of idling devices
- F02M3/12—Passageway systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/04—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
- F02M1/046—Auxiliary carburetting apparatus controlled by piston valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/50—Carburettors having means for combating ice-formation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/30—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
- F02M69/32—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines with an air by-pass around the air throttle valve or with an auxiliary air passage, e.g. with a variably controlled valve therein
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Brennstoffversorgungseinrichtung 1 ist einem nur angedeuteten Motor 2 auf einem Saugrohr 3 zugeordnet. Eine von einem nicht dargestellten Luftfilter kommende Zuleitung 4 führt die Luft zum Ansaugkanal 5 der Brennstoffversorgungseinrichtung. Diese weist von stromab nach stromauf eine Drosselklappe 6, einen Venturi 7 und einen Vorzerstäuber 8 in dem Ansaugkanal 5 auf. Der Brennstoff gelangt von einem Tank 9 über eine elektrische Brennstoffpumpe 10 und ein Filter 11 zu einer in der Wandung der Brennstoffversorgungseinrichtung befindlichen Leitung 12 zu einem elektromagnetisch betätigten Dosierventil 13 und durchspült dort eine Kammer kleinen Volumens 14, die einen vom elektromagnetisch betätigten Dosierventil 13 gesteuerten Austritt 15 zu einer weiteren in der Ansaugkanalwandung befindlichen Leitung 16 aufweist. Die Kammer 14 steht über eine Fortsetzung der Leitung 12 mit einem Druckregler 17 in Verbindung von dem aus eine Leitung 18 zum Tank zurückführt. Der Druckregler kann in bekannter Weise aufgebaut sein und weist einen von einer Membran 19 gesteuerten Ventilsitz 20 auf, so daß der auf die Membranfläche wirkende Brennstoffdruck diese gegen die Kraft einer Feder 21 bewegt und den Rücklauf ermöglicht. Die Öffnungszeit des Dosierventils 13 wird durch ein Steuergerät 22 in Abhängigkeit von Motorbetriebsparametern und Umgebungsbedingungen bekannterweise errechnet wobei diese Eingangsgrößen des Steuergerätes z. B. die Drehzahl n, der Drosselklappenwinkel OGDK. The fuel supply device 1 is only indicated Motor 2 assigned to an intake manifold 3. One of an air filter, not shown The incoming supply line 4 leads the air to the intake duct 5 of the fuel supply device. This has from downstream to upstream a throttle valve 6, a Venturi 7 and a pre-atomizer 8 in the suction channel 5. The fuel comes from one Tank 9 via an electric fuel pump 10 and a filter 11 to one in the Wall of the fuel supply device located line 12 to an electromagnetic actuated metering valve 13 and flushes a chamber of small volume 14 there, an outlet controlled by the electromagnetically actuated metering valve 13 15 to a further line 16 located in the intake duct wall. The chamber 14 is connected to a continuation of the line 12 with a pressure regulator 17 in connection from which a line 18 leads back to the tank. The pressure regulator can be constructed in a known manner and has a membrane 19 controlled Valve seat 20, so that the fuel pressure acting on the membrane surface this moved against the force of a spring 21 and allows the return. The opening hours of the metering valve 13 is controlled by a control unit 22 as a function of engine operating parameters and ambient conditions are known to be calculated using these input variables of Control device z. B. the speed n, the throttle valve angle OGDK.
die Luftmasse L m und die Motortemperatur T sein können. the air mass L m and the engine temperature T can be.
Der Brennstoff gelangt also von dem vom Dosierventil beherrschten Austritt 15 in die Leitung 16. Diese geht von dem Ansaugkanal aus und zwar von einem Bereich stromauf des Venturi. An ihrer Einmündung ist eine Luftkorrekturdüse 23 vorgesehen. Die Leitung 16 weist einen Abzweig 24 auf, der zu dem Vorzerstäuber 8 führt, der im engsten Bereich des Venturi 7 ausmündet. Weiterhin weist die Leitung 16 eine Ausmündung 25 auf, die im Ansaugkanal stromab der sich in Schließstellung befindlichen Drosselklappe befindet. Durch diese Anordnung ist eine Brennstoffkanalführung gegeben, die es ermöglicht, im Leerlauf und in der unteren Teillast den Brennstoff stromab der Drosselklappe zuzugeben, wodurch für diesen Betriebsbereich keine Vereisungsgefahr mehr besteht, da der Brennstoff keine Engstellen mehr passieren muß. Sofern in der dargestellten Ausführungsform die Drosselklappe gegen den Uhrzeigersinn öffnet, d. h. die Ausmündung 25 bei sich öffnender Drosselklappe im Bereich stromab von dieser verbleibt, wird der Brennstoff oder zumindest ein erheblicher Teil des Brennstoffes durch die bestehenden Druckverhältnisse bis in den Bereich mittlerer Teillast durch die Ausmündung 25 entnommen und für den Bereich oberer Teillast und Vollast wird der dosierte Brennstoff übergangslos über den Vorzerstäuber 8 abgegeben. Für beide Austrittspunkte wirkt sich positiv zur Gemischbildung aus, daß bereits eine Emulsion von Brennstoff und Luft in der Leitung 16 bzw. im Abzweig 24 durch die Luftzugabe an der Luftkorrekturdüse 23 gebildet ist, wobei für den Betriebsbereich in dem der Brennstoff über den Vorzerstäuber 8 austritt diese Aufbereitung noch weiterhin verstärkt wird. The fuel therefore comes from that controlled by the metering valve Exit 15 into line 16. This starts from the intake duct and from one Area upstream of the venturi. An air correction nozzle 23 is located at its confluence intended. The line 16 has a branch 24 to the pre-atomizer 8 leads, which opens out in the narrowest area of the Venturi 7. Furthermore, the line 16 an outlet 25, which is in the intake duct downstream of the in the closed position located throttle valve is located. This arrangement creates a fuel duct given, which makes it possible to use the fuel in idle and in the lower partial load to be added downstream of the throttle valve, which means that there is no risk of icing for this operating range there is more, since the fuel no longer has to pass through bottlenecks. Unless in the The illustrated embodiment opens the throttle valve counterclockwise, d. H. the outlet 25 when the throttle valve opens in the area downstream of if this remains, the fuel or at least a considerable part of the fuel becomes due to the existing pressure conditions up to the range of medium partial load the outlet 25 is removed and is used for the area of upper partial load and full load the metered fuel is delivered seamlessly via the pre-atomizer 8. For both Exit points have a positive effect on the formation of a mixture that is already an emulsion of fuel and air in line 16 or in branch 24 through the addition of air is formed on the air correction nozzle 23, wherein for the operating range in which the Fuel exits via the pre-atomizer 8, this processing continues to be intensified will.
Sollten es Abstimmungsprobleme an bestimmten Motoren erforderlich machen, daß der Brennstoff im Bereich der Ausmündung 25 nur während des Leerlaufs dort auslritt, ist vorgesehen, daß die Drosselklappe im Ilhrzeigersinn öffnet, so daß die Ausmündung 25 bei sich öffnender Drosselklappe von dem Bereich stromab in den Bereich stromauf zu liegen kommt, wodurch die Enlnahme des Brennstoffs durch Änderung des anliegenden Drucksignals nur über den Vorzerstäuber 8 erfolgt. Should there be coordination problems on certain engines make that the fuel in the area of the orifice 25 only during idling there, it is provided that the throttle valve opens clockwise, so that the outlet 25 with the opening of the throttle valve from the area downstream in the area comes to lie upstream, whereby the withdrawal of the fuel by The applied pressure signal can only be changed via the pre-atomizer 8.
- Leerseite -- blank page -
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3441967A DE3441967C1 (en) | 1984-11-16 | 1984-11-16 | Fuel feed device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3441967A DE3441967C1 (en) | 1984-11-16 | 1984-11-16 | Fuel feed device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3441967C1 true DE3441967C1 (en) | 1986-06-19 |
Family
ID=6250501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3441967A Expired DE3441967C1 (en) | 1984-11-16 | 1984-11-16 | Fuel feed device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3441967C1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2213124B2 (en) * | 1971-03-19 | 1974-11-07 | Automobiles Peugeot, Paris | Device for injecting fuel into multi-cylinder internal combustion engines |
DE3143848A1 (en) * | 1981-11-05 | 1983-05-11 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE VALVE, ESPECIALLY FUEL INJECTION VALVE |
DE2857691C2 (en) * | 1977-11-21 | 1984-06-28 | General Motors Corp., Detroit, Mich. | Fuel injection system for internal combustion engines |
-
1984
- 1984-11-16 DE DE3441967A patent/DE3441967C1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2213124B2 (en) * | 1971-03-19 | 1974-11-07 | Automobiles Peugeot, Paris | Device for injecting fuel into multi-cylinder internal combustion engines |
DE2857691C2 (en) * | 1977-11-21 | 1984-06-28 | General Motors Corp., Detroit, Mich. | Fuel injection system for internal combustion engines |
DE3143848A1 (en) * | 1981-11-05 | 1983-05-11 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETICALLY ACTUABLE VALVE, ESPECIALLY FUEL INJECTION VALVE |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PIERBURG GMBH, 4040 NEUSS, DE |
|
8339 | Ceased/non-payment of the annual fee |